81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <cassert>
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#include <string>
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#include <iostream>
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#include <fstream>
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#include <set>
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#include "plugin.hxx"
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#include "compat.hxx"
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/**
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Check for calls to operator== on a std::container< std::unique_ptr >, which is not useful,
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because std::container will compare the pointers so it is never true
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*/
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namespace {
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class PtrVector:
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public RecursiveASTVisitor<PtrVector>, public loplugin::Plugin
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{
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public:
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explicit PtrVector(InstantiationData const & data): Plugin(data) {}
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virtual void run() override
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{
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TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
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}
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bool shouldVisitTemplateInstantiations () const { return true; }
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bool VisitCXXOperatorCallExpr(const CXXOperatorCallExpr* );
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};
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bool PtrVector::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr* expr)
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{
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if (ignoreLocation(expr)) {
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return true;
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}
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if (expr->getOperator() != clang::OverloadedOperatorKind::OO_EqualEqual
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&& expr->getOperator() != clang::OverloadedOperatorKind::OO_ExclaimEqual)
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{
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return true;
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}
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if (isa<CXXNullPtrLiteralExpr>(expr->getArg(1))) {
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return true;
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}
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const Expr* argExpr = expr->getArg(0);
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std::string s = argExpr->getType().getDesugaredType(compiler.getASTContext()).getAsString();
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if (s.find("iterator") != std::string::npos) {
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return true;
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}
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if (s.find("array") == std::string::npos && s.find("deque") == std::string::npos
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&& s.find("list") == std::string::npos && s.find("vector") == std::string::npos
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&& s.find("set") == std::string::npos && s.find("map") == std::string::npos
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&& s.find("stack") == std::string::npos && s.find("queue") == std::string::npos)
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{
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return true;
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}
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if (s.find("unique_ptr") != std::string::npos) {
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expr->getArg(1)->dump();
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report(
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DiagnosticsEngine::Warning,
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"do not call operator== on a std container containing a unique_ptr " + s,
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expr->getExprLoc());
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}
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return true;
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}
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loplugin::Plugin::Registration< PtrVector > X("ptrvector");
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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